Electrocatalytic hydrogen evolution by robust square planar nickel complexes in an S<sub>2</sub>P<sub>2</sub>coordination environment
作者:Luo Chen、Tao Li、Bin Xie、Chuan Lai、Run-Wu Ji、Jia-Yu He、Jia-Xi Cao、Meng-Nan Liu、Wei Li、Dong-Liang Zhang
DOI:10.1039/d2cy02158g
日期:——
active sites, five new heteroleptic 1,2-bis(p-substitutedphenyl)ethylene-1,2-dithiolate nickel complexes containing the N-(p-methoxyphenyl)-bis(diphenylphosphine)amine ligand, [p-CH3OC6H4N(PPh2)2]Ni[S2C2(C6H4R-p)2)] (R = CH3O (1), CH3 (2), H (3), Br (4), and F (5)), were synthesized and characterized. The crystal structure analysis of 2 and 4·CH2Cl2 indicates that the two complexes have an almost perfect
受 [NiFe]-氢化酶活性位点结构特征的刺激,五种新的杂配 1,2-双(对取代苯基)乙烯-1,2-二硫醇镍配合物含有N -(对甲氧基苯基)-双(二苯基膦) )胺配体, [ p -CH 3 OC 6 H 4 N(PPh 2 ) 2 ]Ni[S 2 C 2 (C 6 H 4 R- p ) 2 )] (R = CH 3 O ( 1 ), CH 3 ( 2 ), H ( 3 ), Br (4 ), 和 F ( 5 )), 被合成和表征。2和4 ·CH 2 Cl 2的晶体结构分析表明,这两种配合物具有由1,2-diarylethylene-1,2-dithiolate和bis(diphenylphosphine)amine定义的近乎完美的S 2 P 2方形平面配位环境配体。以三氟乙酸(TFA)为质子源,结合循环伏安法(CV)和控电位电解(CPE)研究了电化学行为和电催化析氢活性。析氢的周转频率 (TOF)